<template>
  <div class='container'>
    <el-card class="main">
      <!-- 顶部工具栏 -->
      <div class="header">
        <el-row type="flex" justify="space-between" >
          <!-- 左边 -->
          <el-row type="flex" align="middle" >
            <div class="text">学科名称</div>
              <el-input style="width:500px;margin-right: 10px;" v-model="searchValue"  @keyup.enter.native="serchClick" ></el-input>
            <!-- 按钮 -->
            <el-row type="flex">
              <el-button  size="small" @click="searchValue = ''">清除</el-button>
              <el-button type="primary" size="small" @click="serchClick">搜索</el-button>
            </el-row>
            <el-col>
            </el-col>

          </el-row>
          <!-- 右边 -->
          <el-button type="success" @click="showDialog = true"><i style="margin-right:4px" class="el-icon-edit"></i>新增学科</el-button>
        </el-row>
      </div>
      <!-- 提示 -->
      <el-alert
      type="info"
      class="alertInfo"
      show-icon
      :closable="false"
      >
      <template #title>
        数据一共{{ counts }}条
      </template>
    </el-alert>
    <!-- 主体表格 -->
    <el-table
    :data="subjectList"
    style="width: 100%"
    v-loading.fullscreen="tableLoading"
    >
    <el-table-column
      type="index"
      label="序号"
      align="center"
      width="190"
    >
    </el-table-column>
    <el-table-column
      prop="subjectName"
      label="学科名称"
      align="center"
      width="100"
    >
    </el-table-column>
    <el-table-column
      prop="username"
      label="创建者"
      align="center"
      width="190"
    >
    </el-table-column>
    <el-table-column
      prop="addDate"
      label="创建日期"
      align="center"
      width="200"
    >
    <template slot-scope="{ row }">
        {{ parseTime(row.addDate) }}
    </template>
    </el-table-column>
    <el-table-column
      prop="isFrontDisplay"
      align="center"
      label="前台是否显示"
    >
    <template slot-scope="{ row }">
        {{ row.isFrontDisplay === 1 ? '是' : '否' }}
    </template>
    </el-table-column>
    <el-table-column
      prop="twoLevelDirectory"
      align="center"
      label="二级目录"
    >
    </el-table-column>
    <el-table-column
      prop="tags"
      align="center"
      label="标签"
      >
    </el-table-column>
    <el-table-column
      prop="totals"
      align="center"
      label="题目数量"
      >
    </el-table-column>
    <el-table-column
      label="操作"
      align="center"
      width="230"
      >
      <!-- -->
      <template  slot-scope="{row}">
        <el-button  type="text" size="medium" @click="routeDirectorysClick(row)">学科分类</el-button>
        <el-button type="text" size="medium" @click="routeTagsClick(row)">学科标签</el-button>
        <el-button type="text" size="medium" @click="setSubjecy(row)">修改</el-button>
        <el-button type="text" size="medium" @click="delSubject(row)">删除</el-button>
      </template>
    </el-table-column>
  </el-table>
  <!-- 分页 -->
  <el-row type="flex" justify="end" class="pagination">
    <el-pagination
      background
      :page-sizes="[5, 10, 20, 50]"
      :page-size="10"
      layout="total,  prev, pager, next,sizes, jumper"
      :total="counts"
      @current-change="changePage"
      @size-change="changeSize"
      >
    </el-pagination>
  </el-row>
  <!-- 修改弹窗 -->
  <el-dialog :title="titleDialog" :visible.sync="showDialog" width="460px" @close="close">
    <el-form ref="form" :model="form" label-width="80px" :rules="rules">
      <el-form-item label="学科名称" prop="subjectName">
        <el-input v-model="form.subjectName" autocomplete="off"></el-input>
      </el-form-item>
      <el-form-item label="是否显示">
        <el-switch
          v-model="value"
          active-color="#13ce66"
          inactive-color="#ff4949">
        </el-switch>
      </el-form-item>
    </el-form>
    <div slot="footer" class="dialog-footer">
      <el-row type="flex" justify="end">
        <el-button @click="close">取 消</el-button>
        <el-button type="primary" @click="btnOk">确 定</el-button>
      </el-row>
    </div>
  </el-dialog>
    </el-card>

  </div>
</template>

<script>
import { list, update, add, remove } from '@/api/hmmm/subjects.js'
import { parseTime } from '@/utils'
export default {
  name: 'SubjectS',
  data () {
    return {
      parseTime,
      subjectList: [],
      page: {
        page: 1,
        pagesize: 10,
        subjectName: ''
      },
      searchValue: '',
      tableLoading: false,
      counts: 0,
      showDialog: false,
      form: {
        subjectName: '',
        isFrontDisplay: 1
      },
      // value: true,
      rules: {
        subjectName: [
          { required: true, message: '学科名称不能为空', trigger: 'blur' }
        ]
      },
      isSearch: false
    }
  },
  created () {
    this.getSubjectLists()
  },
  methods: {
    // 获取学科列表
    async getSubjectLists () {
      this.tableLoading = true
      try {
        const { data } = await list(this.page)
        this.subjectList = data.items
        this.counts = data.counts
        this.tableLoading = false
        // console.log(data)
      } catch (err) {
        this.tableLoading = false
      }
    },
    // 搜索
    async serchClick () {
      this.tableLoading = true
      this.isSearch = true
      if (this.searchValue.trim()) {
        try {
          const { data } = await list({ ...this.page, subjectName: this.searchValue })
          this.subjectList = data.items
          this.counts = data.counts
          this.tableLoading = false
          // console.log(data)
        } catch (err) {
          this.tableLoading = false
        }
      } else {
        // 啥都没有 渲染全部
        this.isSearch = false
        this.getSubjectLists()
      }
    },
    // 页码变化
    changePage (newPage) {
      this.page.page = newPage
      if (this.isSearch) {
        // 搜索的数据
        this.serchClick()
      } else {
        this.getSubjectLists()
      }
    },
    // 每页装多少条数据变化
    changeSize (newSize) {
      this.page.pagesize = newSize
      if (this.isSearch) {
        this.serchClick()
      } else {
        this.getSubjectLists()
      }
    },
    // 点击修改
    setSubjecy (row) {
      this.showDialog = true
      // console.log(row)
      this.form = { ...row }
    },
    // 点击确定
    async btnOk () {
      await this.$refs.form.validate()
      if (this.form.id) {
        // 此时修改
        try {
          if (this.value) {
          // 此时开启让 isFrontDisplay = 1
            await update({ ...this.form, isFrontDisplay: 1 })
          } else {
            await update({ ...this.form, isFrontDisplay: 0 })
          }
          this.$message.success('更新学科成功')
          this.showDialog = false
          this.getSubjectLists()
        } catch (err) {
          this.showDialog = false
        }
      } else {
        // 此时新增
        try {
          if (this.value) {
          // 此时开启让 isFrontDisplay = 1
            await add({ ...this.form, isFrontDisplay: 1 })
          } else {
            await add({ ...this.form, isFrontDisplay: 0 })
          }
          this.$message.success('添加学科成功')
          this.showDialog = false
          this.getSubjectLists()
        } catch (err) {
          this.showDialog = false
        }
      }
    },
    // 点击删除
    async delSubject (row) {
      // console.log(row)
      try {
        await this.$confirm('此操作将永久删除该学科, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        })
        await remove(row)
        this.$message.success('删除学科成功')
        this.getSubjectLists()
      } catch (err) {
        console.log(err)
      }
    },
    // 关闭弹窗
    close () {
      this.showDialog = false
      this.form = {
        subjectName: '',
        isFrontDisplay: 1
      }
      this.$refs.form.resetFields()
    },
    // 路由跳转学科分类 跳转到目录
    routeDirectorysClick (row) {
      // console.log(row)
      this.$router.push({
        path: 'directorys',
        query: {
          id: row.id,
          name: row.subjectName
        }
      })
    },
    // 学科标签跳转
    routeTagsClick (row) {
      this.$router.push({
        path: 'tags',
        query: {
          id: row.id,
          name: row.subjectName
        }
      })
    }
  },
  computed: {
    // 处理 是否展示前台的数据
    value: {
      get () {
        return this.form.isFrontDisplay === 1
      },
      set (val) {
        if (val) {
          this.form.isFrontDisplay = 1
        } else {
          this.form.isFrontDisplay = 0
        }
      }
    },
    titleDialog () {
      if (this.form.id) {
        return '修改学科'
      } else {
        return '新增学科'
      }
    }
  }
}
</script>

<style  lang='scss'>
.main {

  margin: 10px;
  .text {
    width: 150px;
    margin-left: 20px;
    font-size: 14px;
    font-weight: 700;
  }
  .alertInfo {
    margin-top: 20px;
    margin-bottom: 20px;
  }
  .delete {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    text-align: center;
    line-height: 32px;
    border: 1px solid #facece;
    background-color: #fef0f0;
    color: red;
    font-size: 12px;
    &:hover {
      background-color: #f56c6c;
      color: #fff;
    }
  }

 .el-table th.el-table__cell.is-leaf{
    background-color: #fafafa !important;
    border-bottom: 2px solid #e8e8e8;
  }
  .pagination {
    margin-top: 15px;
  }
}
.questions {
  margin-top: 15px;
  padding-bottom: 15px;
  border-bottom: 1px solid #999;
}
.remarks {
  border: none;
}
.questionMain {
  .title {
    color: blue;
    margin: 10px 0;
  }
}
</style>
